Fine-Tuning Jobs

Baseten is seeking a customer-obsessed software engineer to join their team and contribute to the development of mission-critical AI inference platforms. In this role, you will own features from conception to launch, working across the entire technology stack from API and UI down to the infrastructure layer. You will have the opportunity to fine-tune models, gain a deep understanding of user workflows, and collaborate closely with research engineers to build cutting-edge experiences that accelerate model development and address real-world pain points. If you are excited about diving deep into AI model training and building impactful products, this is the role for you.

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. We are seeking a core member for our Applied AI team to lead Forward Deployed Engineering efforts with enterprise customers. This role involves translating advanced AI research into high-impact, real-world applications, owning the technical strategy and delivery of agentic systems from discovery to production launch.

Mistral AI

Mistral AI is seeking a talented and experienced Product Manager to define and execute the strategy for Forge, a product that empowers customers to build, fine-tune, and deploy custom AI models at scale. Forge transforms cutting-edge research into enterprise-ready capabilities by supporting model fine-tuning, reinforcement learning, and post-training workflows. This role operates at the intersection of research and product, enabling customers to train specialized models for real-world business value. You will collaborate closely with applied AI scientists and research engineers to translate frontier techniques into scalable and reliable solutions, shaping a 0-1 product with significant business impact and defining the future of how organizations train and deploy AI models.

As a Research Engineer at Gamma, you will build models for visual communication, focusing on teaching them to reason about spatial composition, hierarchy, and visual language. This role is at the intersection of research rigor and product impact, offering the opportunity to develop evaluation frameworks and training data for a field with limited existing resources. You will fine-tune vision-language models to ensure Gamma's 100M+ users receive exceptional design quality with every generation. Success in this role requires a combination of deep expertise in VLMs and multimodal modeling, a research-oriented mindset, comfort with ambiguity, and a keen eye for visual and design quality.

$180k - $340k

You will own the core AI systems that power Gamma, focusing on productizing existing foundation models rather than training new ones. This involves optimizing models through prompting, evaluation, and fine-tuning for maximum performance across Gamma's product surface. You will also be responsible for launching new modalities like voice and video, building evaluation infrastructure, and managing uptime, latency, and cost across the AI stack. The role requires close collaboration with engineering and product teams to deliver improvements that impact millions of users. This position is ideal for individuals who enjoy pushing foundation models to their limits and are comfortable with both prompt engineering and production code development, blending these skills to unlock new AI capabilities.

$180k - $300k

Mistral AI

Mistral AI is seeking an Applied AI Engineer to join its customer-facing technical organization. This role involves facilitating customer adoption of Mistral AI products, addressing complex technical challenges, and deploying cutting-edge AI solutions that deliver measurable business impact. You will bridge the gap between AI research and real-world enterprise applications, ensuring solutions are robust, scalable, and aligned with customer needs and Mistral's technological vision. The team operates with a focus on outputs, direct communication, and a low-ego, high-standards environment, embracing an unstructured setting.

Fireworks is seeking a Member of Technical Staff, Evals & Post-Training Product to define how developers improve models on the Fireworks platform. This role combines scalable system design, deep data science, and model quality. You will build the infrastructure and workflows connecting evaluation and post-training, taking our evaluation setup to the next stage by improving programmatic access and scale. You will work across backend systems, sandbox infrastructure, and user-facing surfaces to simplify the authoring of evaluations, understanding of results, and rapid iteration.

Cartesia is seeking a Researcher for their Post-Training team to develop methods and systems that make multimodal models adaptive, aligned, and grounded in human intent. This role involves working at the intersection of machine learning research, alignment, and infrastructure, focusing on preference optimization, model evaluation, and feedback-driven learning. You will explore how feedback signals can guide models to reason more effectively across modalities and build the infrastructure to measure and improve these behaviors at scale. Your work will directly influence how Cartesia's foundation models learn, improve, and connect with people.

Mistral AI

Mistral is on a mission to democratize AI by producing frontier intelligence for everyone, developed in the open and built by a global team. We are a dynamic, collaborative group passionate about AI's potential to transform society, with a diverse workforce distributed across Europe, the USA, and Asia. We focus on developing models for enterprise and consumers that can change business operations and integrate into daily lives, while also releasing frontier models open-source. We are hiring experts in large language model training and distributed systems to shape the future of AI.

Mistral AI

Mistral AI is seeking an Applied AI Engineer to drive the adoption of its products among customers and collaborate with them to address complex technical challenges. This role is integral to the Applied AI Engineering team, focusing on the successful deployment of Mistral AI products and building complex enterprise use-cases. You will work hand-in-hand with customers from pre-sale to post-implementation, ensuring solutions meet and exceed client expectations. You will manage customer relations involving multiple stakeholders and serve as a key resource in externalizing our research in production settings.

Mistral AI

Mistral AI is seeking an Applied AI Engineer to join their team and facilitate the adoption of their products among customers. This role involves working closely with clients from the pre-sale stage through post-implementation, ensuring their solutions meet and exceed expectations. The engineer will manage daily customer relations, act as a key resource for externalizing research in production settings, and collaborate with researchers, AI engineers, and product engineers on complex customer projects. The goal is to drive the successful deployment of Mistral AI products and contribute to technological transformation across various industries.

As an Applied Machine Learning Engineer, you will serve as a vital bridge between cutting-edge AI research and practical, real-world applications. Your work will focus on developing, fine-tuning, and operationalizing machine learning models that drive business value and enhance user experiences. This is a hands-on engineering role that combines deep technical expertise with a strong customer focus to deliver scalable AI solutions.

OpenAI

The Engineering Acceleration team designs, builds, and maintains the foundational systems that engineers use to build ChatGPT and the API. This is a fast-growing team where you will have the opportunity to own and define the strategy, vision, and plan for increasing developer productivity. You will drive the design, development, and implementation of tools, systems, and processes that accelerate engineering velocity, reduce manual effort, and increase the quality of output. You will also use our latest AI tools to re-think how we can be the most productive team in the industry, working closely with various teams within OpenAI to understand their workflows, challenges, and needs.

We are seeking a Member of Technical Staff specializing in Image/Video Generation to join our team. You will be instrumental in training large-scale diffusion models for image and video generation, pushing the boundaries of generative AI. This role involves exploring novel approaches, rigorously testing design choices, and understanding the trade-offs between speed and quality in production settings. You will contribute to shaping our research direction by conducting experiments, analyzing results, and communicating findings to the team. This is an opportunity to work on foundational technologies used by millions of creators worldwide and contribute to the advancement of generative models.

€130k - €340k

Mistral AI

Mistral AI is seeking an Applied AI Engineer to drive the adoption of its products and solve complex technical challenges for customers. The Applied AI team works directly with enterprise clients from pre-sales through implementation, deploying cutting-edge AI solutions to deliver measurable business impact. This role bridges the gap between AI research and real-world applications, ensuring solutions are robust, scalable, and aligned with customer needs and Mistral's vision. The team values output and impact over hours spent, fostering a direct, low-ego, and high-standards environment where the best ideas prevail.